DS3232 데이터 시트보기 (PDF) - Maxim Integrated

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DS3232

Extremely Accurate I2C RTC with Integrated Crystal and SRAM

Maxim Integrated 

Extremely Accurate I2C RTC with

Integrated Crystal and SRAM

ABSOLUTE MAXIMUM RATINGS

Voltage Range on VCC, VBAT, 32kHz, SCL, SDA, RST,

INT/SQW Relative to Ground.............................-0.3V to +6.0V

Operating Temperature Range

(noncondensing) .............................................-40°C to +85°C

Junction Temperature ......................................................+125°C

Storage Temperature Range ...............................-40°C to +85°C

Lead Temperature

(soldering, 10s) .....................................................+260°C/10s

Soldering Temperature (reflow, 2 times max) .......See IPC/JEDEC

J-STD-020 Specification

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED DC OPERATING CONDITIONS

(TA = -40°C to +85°C, unless otherwise noted.) (Notes 1, 2)

PARAMETER

Supply Voltage

SYMBOL

VCC

VBAT

CONDITIONS

Logic 1 Input SDA, SCL

VIH

Logic 0 Input SDA, SCL

Pullup Voltage

(SDA, SCL, INT/SQW)

VIL

VPU

VCC = 0V

MIN

2.3

2.3

0.7 x

VCC

-0.3

TYP MAX UNITS

3.3

5.5

V

3.0

5.5

VCC +

V

0.3

+0.3 x

VCC

V

5.5V

V

ELECTRICAL CHARACTERISTICS

(VCC = 2.3V to 5.5V, VCC = active supply (see Table 1), TA = -40°C to +85°C, unless otherwise noted.) (Typical values are at VCC =

3.3V, VBAT = 3.0V, and TA = +25°C, unless otherwise noted.) (Notes 1, 2)

PARAMETER

Active Supply Current

Standby Supply Current

SYMBOL

ICCA

ICCS

CONDITIONS

32kHz output off

(Notes 3, 4)

VCC = 3.3V

VCC = 5.5V

I2C bus inactive, 32kHz

output off, SQW output off

(Note 4)

VCC = 3.3V

VCC = 5.5V

MIN TYP MAX UNITS

200

μA

325

120

μA

160

Temperature Conversion Current

ICCSCONV

I2C bus inactive, 32kHz

output off, SQW output off

VCC = 3.3V

VCC = 5.5V

500

μA

600

Power-Fail Voltage

VPF

2.45 2.575 2.70

V

ACTIVE SUPPLY (Table 1 ) (2.3V to 5.5V, TA = -40°C to +85°C, unless otherwise noted) (Note 1)

Logic 1 Output, 32kHz

Active supply > 3.3V,

IOH = -1mA

IOH = -0.75mA

VOH 3.3V > active supply > 2.7V,

2.0

2.7V > active supply > 2.3V

V

IOH = -0.14mA

2 _____________________________________________________________________

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